Supar heat
•Download as PPTX, PDF•
1 like•162 views
Super heat refers to the amount of heat added to a refrigerant vapor after it has evaporated from a liquid. Vapor refrigerant is super heated at constant pressure before entering the compressor. The degree of super heat is calculated as the temperature of the refrigerant out of the evaporator minus the saturation temperature of the refrigerant. Super heating and sub cooling increase both the refrigeration effect and the coefficient of performance (COP) of the refrigeration system.
Report
Share
Report
Share
Recommended
Subcooling
Subcooling is the amount of heat removed from a refrigerant after it has condensed into a liquid. Liquid refrigerant is subcooled at constant pressure before entering the expansion valve, which increases both the refrigeration effect and the coefficient of performance (COP) of the refrigeration system. The degree of subcooling is measured as the saturation temperature of the refrigerant minus the temperature of the refrigerant leaving the condenser.
Subcooling and superheating in refrigeration
Subcooling is cooling liquid refrigerant below its saturation temperature at constant pressure in the condenser, which keeps it fully liquid and improves cycle efficiency. Superheating heats the vapor in the evaporator so it enters the compressor as a vapor rather than liquid-vapor mixture, but increases compressor work and reduces capacity. Both processes impact the refrigeration cycle efficiency and capacity.
Basic ac refrigeration cycle
This diagram shows the basic components and process of a refrigeration cycle. A compressor increases the pressure and temperature of vapour from an evaporator. This high pressure vapour enters a condenser where it condenses into a liquid, releasing heat. The low pressure liquid then enters an expansion device and evaporator, where it absorbs heat and evaporates back into a vapour to complete the cycle.
Basic refrigeration cycle .
The document discusses the basic refrigeration cycle. It begins by introducing refrigeration as the transfer of heat from a lower to higher temperature region. The most common refrigeration cycle is the vapor compression cycle, where the refrigerant alternates between vaporization and condensation states and is compressed as a vapor. The basic processes of the refrigeration cycle are: (1) compression, (2) heat rejection during condensation, (3) expansion, and (4) heat absorption during evaporation. The cycle is repeated through the compressor. The coefficient of performance is used to measure efficiency. Selection of the right refrigerant depends on the specific application.
Difference Between Simple Vapour Compression cycle and simple vapour absorpti...
This document compares and contrasts the simple vapor compression refrigeration cycle and the simple vapor absorption refrigeration cycle. It outlines the main components of each cycle - compressor, condenser, expansion valve, evaporator for the vapor compression cycle and absorber, generator, pump, condenser, expansion valve, evaporator for the vapor absorption cycle. It describes the main functions of each component and concludes by stating that the vapor compression cycle is more efficient and has a higher COP but requires electricity, while the vapor absorption cycle is less efficient and complex but uses heat such as steam instead of electricity.
Method of steam conditioning unit
The steam conditioning unit takes hot steam from a network and converts it into saturated steam for cloth production. It works by flowing hot steam through a water bath cooler, where a flow distributor converts it into bubbles that rise and cool in the water, becoming saturated. Level sensors ensure sufficient water is in the cooler. The resulting saturated steam then flows into the steamer.
Performance (COP) Analysis of a Vapour Compression Refrigeration System compo...
Performance (COP) Analysis of a Vapour Compression Refrigeration System compo...Association of Scientists, Developers and Faculties
The COP of the refrigeration increasing the performance and to get high efficiency of the refrigeration system. By using nano coating over the evaporator of the refrigeration component the objective can be achieved. The improper heat dissipation occurred in the heat exchanger components causes effect in performance. The vapour compression refrigeration system consuming the high power. Though the energy taken for the refrigeration process has increased and leads to more power consumption. In order to increase the performance, Nano coating Copper Oxide has been applied over the evaporator. By applying the Nano coating Copper Oxide over the evaporator the COP increased. In result the energy required for the refrigeration process and global warming problems has been reduced. By addition of nanoparticles to the refrigeration results in improvements in the COP of the refrigeration, thereby improving the performance of the refrigeration system. In this experiment the effect of using CuO-R134a in the vapour compression system expected COP will be increased by 5% with nano coating.Simple Vapour Compression Refrigeration System
The document discusses the simple vapor compression refrigeration system. It begins by defining what a vapor compression refrigeration system is and why they are needed over other refrigeration systems. It then outlines the basic mechanism and components of a simple vapor compression refrigeration cycle, including the compressor, condenser, expansion device, and evaporator. Finally, it discusses factors that affect the system's coefficient of performance and lists some advantages and disadvantages.
Recommended
Subcooling
Subcooling is the amount of heat removed from a refrigerant after it has condensed into a liquid. Liquid refrigerant is subcooled at constant pressure before entering the expansion valve, which increases both the refrigeration effect and the coefficient of performance (COP) of the refrigeration system. The degree of subcooling is measured as the saturation temperature of the refrigerant minus the temperature of the refrigerant leaving the condenser.
Subcooling and superheating in refrigeration
Subcooling is cooling liquid refrigerant below its saturation temperature at constant pressure in the condenser, which keeps it fully liquid and improves cycle efficiency. Superheating heats the vapor in the evaporator so it enters the compressor as a vapor rather than liquid-vapor mixture, but increases compressor work and reduces capacity. Both processes impact the refrigeration cycle efficiency and capacity.
Basic ac refrigeration cycle
This diagram shows the basic components and process of a refrigeration cycle. A compressor increases the pressure and temperature of vapour from an evaporator. This high pressure vapour enters a condenser where it condenses into a liquid, releasing heat. The low pressure liquid then enters an expansion device and evaporator, where it absorbs heat and evaporates back into a vapour to complete the cycle.
Basic refrigeration cycle .
The document discusses the basic refrigeration cycle. It begins by introducing refrigeration as the transfer of heat from a lower to higher temperature region. The most common refrigeration cycle is the vapor compression cycle, where the refrigerant alternates between vaporization and condensation states and is compressed as a vapor. The basic processes of the refrigeration cycle are: (1) compression, (2) heat rejection during condensation, (3) expansion, and (4) heat absorption during evaporation. The cycle is repeated through the compressor. The coefficient of performance is used to measure efficiency. Selection of the right refrigerant depends on the specific application.
Difference Between Simple Vapour Compression cycle and simple vapour absorpti...
This document compares and contrasts the simple vapor compression refrigeration cycle and the simple vapor absorption refrigeration cycle. It outlines the main components of each cycle - compressor, condenser, expansion valve, evaporator for the vapor compression cycle and absorber, generator, pump, condenser, expansion valve, evaporator for the vapor absorption cycle. It describes the main functions of each component and concludes by stating that the vapor compression cycle is more efficient and has a higher COP but requires electricity, while the vapor absorption cycle is less efficient and complex but uses heat such as steam instead of electricity.
Method of steam conditioning unit
The steam conditioning unit takes hot steam from a network and converts it into saturated steam for cloth production. It works by flowing hot steam through a water bath cooler, where a flow distributor converts it into bubbles that rise and cool in the water, becoming saturated. Level sensors ensure sufficient water is in the cooler. The resulting saturated steam then flows into the steamer.
Performance (COP) Analysis of a Vapour Compression Refrigeration System compo...
Performance (COP) Analysis of a Vapour Compression Refrigeration System compo...Association of Scientists, Developers and Faculties
The COP of the refrigeration increasing the performance and to get high efficiency of the refrigeration system. By using nano coating over the evaporator of the refrigeration component the objective can be achieved. The improper heat dissipation occurred in the heat exchanger components causes effect in performance. The vapour compression refrigeration system consuming the high power. Though the energy taken for the refrigeration process has increased and leads to more power consumption. In order to increase the performance, Nano coating Copper Oxide has been applied over the evaporator. By applying the Nano coating Copper Oxide over the evaporator the COP increased. In result the energy required for the refrigeration process and global warming problems has been reduced. By addition of nanoparticles to the refrigeration results in improvements in the COP of the refrigeration, thereby improving the performance of the refrigeration system. In this experiment the effect of using CuO-R134a in the vapour compression system expected COP will be increased by 5% with nano coating.Simple Vapour Compression Refrigeration System
The document discusses the simple vapor compression refrigeration system. It begins by defining what a vapor compression refrigeration system is and why they are needed over other refrigeration systems. It then outlines the basic mechanism and components of a simple vapor compression refrigeration cycle, including the compressor, condenser, expansion device, and evaporator. Finally, it discusses factors that affect the system's coefficient of performance and lists some advantages and disadvantages.
thermodynamic property of Refrigerator
The document discusses the thermodynamic properties of refrigerators. It describes the key components of a refrigerator - the compressor, condenser, expansion valve, and evaporator. It explains how each component works and how refrigeration is achieved through the phase change of refrigerants. Specifically, the refrigerant is compressed and condensed in the compressor and condenser, expanded through a throttling device, and evaporated in the evaporator, absorbing heat from the refrigerator. The coefficient of performance is introduced as a measure of a refrigerator's effectiveness. Applications of refrigeration like ice manufacturing and food preservation are also listed.
6 simple vapor_compression_rs
1) A simple vapor compression refrigeration system consists of a compressor, condenser, expansion valve, and evaporator connected in a closed loop.
2) Refrigerant is compressed from a low pressure vapor to a high pressure vapor in the compressor, condensed in the condenser, expanded through the expansion valve, and evaporated in the evaporator, absorbing heat from its surroundings.
3) The coefficient of performance (COP) of the system, which indicates its efficiency, depends on factors like subcooling of the refrigerant liquid, superheating of the refrigerant vapor, evaporating and condensing pressures, and the volumetric efficiency of the compressor.
Air conditioning introduction
Air conditioning systems work by removing heat from indoor spaces and transferring it outdoors. They maintain indoor temperatures regardless of outdoor conditions. Refrigerators and air conditioners operate on the same principle - using a compressor, condenser coil, expansion valve and evaporator coil to move heat from inside to outside through the evaporation and condensation of refrigerant. As heat is removed, indoor spaces are cooled down in accordance with the second law of thermodynamics.
PRESENTATATION ON FRIDGE/REFRIDGERATOR
In this power-point presentation, you'll understand the basic concepts & mechanisms of a fridge/refrigerator.
This is a short ppt in simple english language for easy & quick understanding of concepts.
Hope, it'll be helpful to you
THANKYOU :)
Refrigeration cycle
The document summarizes the refrigeration cycle. It describes the four basic processes: (1) isentropic compression in the compressor, (2) constant pressure heat rejection in the condenser, (3) isentropic expansion in the expansion valve/metering device, and (4) constant pressure heat addition in the evaporator. The refrigerant is compressed in the vapor phase, condensed, expanded, and evaporated alternately to provide cooling. Key components are the compressor, condenser, expansion valve, and evaporator. The coefficient of performance (COP) measures efficiency as the cooling effect divided by the work input. Selecting the right refrigerant depends on the application and factors like cost, toxicity, and environmental impact
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
This document summarizes a seminar presentation on vapour compression refrigeration. It describes the basic process of refrigeration, the key components of a refrigeration system including the evaporator, compressor, condenser and expansion valve. It then explains the vapour compression refrigeration cycle in four steps: 1) low pressure liquid refrigerant absorbs heat in the evaporator and changes to a gas, 2) the gas is compressed to high pressure in the compressor, 3) the high pressure gas is cooled and condensed in the condenser, 4) the liquid passes through an expansion device where its pressure is reduced before entering the evaporator again. The document concludes by listing some advantages and disadvantages of vapour compression refrigeration.
Refrigeration system
This document discusses the refrigeration system used by Sardar Vallabhbhai Patel Institute of Technology students Dhrupal Patel, Divya Patel, Kunj Patel, and Meet Patel. It describes the basic components and processes of a vapor compression refrigeration system, including the evaporator, compressor, condenser, expansion valve, and their functions. The refrigerant absorbs heat during evaporation and rejects heat during condensation, allowing for cooling effects. Vapor compression refrigeration systems have advantages like smaller size, higher efficiency, and lower power requirements compared to other refrigeration methods.
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
This document summarizes the key aspects of vapour compression refrigeration. It discusses how refrigeration works by extracting heat from a substance using an external work input. Vapour compression refrigeration uses a refrigerant in a closed loop system consisting of an evaporator, compressor, condenser and expansion valve. The refrigerant absorbs heat in the evaporator and rejects heat in the condenser, with the compressor raising the refrigerant's pressure and temperature between these components. This creates a temperature difference that drives heat transfer from the evaporator to the condenser. The document outlines the refrigeration cycle and components in more detail. It also discusses coefficient of performance, units of refrigeration, advantages and disadvantages of vapour compression systems.
Seminar presentation on Vapour Compression Refrigeration
This document provides an overview of a seminar on vapour compression refrigeration. The seminar was guided by Mr. Devendra Bhandari and prepared by Ujjwal Nautiyal. It discusses the basic principles of refrigeration including how refrigerants are used to extract heat from refrigerators and reject it to the atmosphere. It then describes the key components of a refrigeration system including the evaporator, compressor, condenser, and expansion valve. The document outlines the refrigeration cycle process and concludes by discussing advantages like high efficiency and disadvantages like use of ozone depleting refrigerants.
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
This document summarizes a seminar presentation on vapor compression refrigeration. It describes the basic principles of refrigeration, including defining refrigeration as the removal of heat from a substance at a lower temperature than its surroundings. It then explains the key components and process of a vapor compression refrigeration system, including the evaporator, compressor, condenser, and expansion valve. The document also discusses units of refrigeration, coefficient of performance, advantages and disadvantages of vapor compression refrigeration.
2.1 control systems
The document describes how air conditioning systems and central heating systems work. It explains that air conditioning systems use refrigerant that easily changes between gas and liquid states to absorb heat inside a building. The condenser and expansion valve work to cool the refrigerant into a liquid that cools the inside air. Central heating systems use a boiler to heat water, which circulates through a hot water cylinder and radiators to heat a building. Microprocessor controls are also explained.
Performance enhancement-of-vcrs-using-lshx
The document discusses enhancing the performance of vapor compression refrigeration systems (VCRS) using a liquid suction heat exchanger (LSHX). Adding an LSHX between the condenser and evaporator allows for subcooling of the liquid refrigerant and superheating of the vapor. This increases the refrigeration effect and coefficient of performance (COP) of the system. Theoretically, the COP of a VCRS with an LSHX is higher than a simple cycle without subcooling or superheating. Previous studies have also found improvements to COP of up to 18% with the addition of an LSHX. The document analyzes the vapor compression cycle both on T-S and P-h diagrams to
Refrigeration & Air conditioning
The document provides an overview of refrigeration and air conditioning concepts. It discusses (1) how refrigeration works by moving heat from low to high temperatures, and its applications in air conditioning and keeping spaces cold. It also (2) defines key terms like the unit of refrigeration (ton), coefficient of performance, humidity, wet bulb temperature and dew point. Finally, it (3) explains the basic working of domestic refrigerators and window air conditioners through diagrams.
Refrigeration cycle
The document summarizes the refrigeration cycle and vapor compression refrigeration system. The refrigeration cycle involves compressing a refrigerant gas, condensing it in a condenser to release heat, expanding the liquid refrigerant which causes it to evaporate and absorb heat, and circulating the cold gas back into the refrigerator. The vapor compression system uses this cycle, with the main components being a compressor, condenser, expansion valve, and evaporator. The compressor increases the refrigerant's pressure and temperature, the condenser cools and condenses it, releasing heat, the expansion valve reduces the pressure and temperature causing evaporation, and the evaporator absorbs heat during evaporation to cool its surroundings.
Basic refrigeration cycle
The basic refrigeration cycle involves four main processes: 1) compression, where a refrigerant is compressed into a high-pressure gas, 2) condensation, where the high-pressure gas condenses into a liquid and releases heat, 3) expansion, where the high-pressure liquid passes through an expansion valve and decreases in pressure, and 4) evaporation, where the low-pressure liquid absorbs heat and evaporates back into a gas to be compressed and repeat the cycle. This cycle exploits how gases give off heat when condensed and liquids absorb heat when evaporated to provide cooling.
Refrigeration 1
This document summarizes key concepts in refrigeration cycles. It defines refrigeration as reducing the temperature below the surroundings and notes that refrigerants, like NH3, are used as working fluids. It explains that the refrigerating effect is the energy removed from the cold chamber and that the coefficient of performance is the ratio of heat removed to work input. The document also discusses refrigerator capacity as the amount of heat transferred per unit time from the cold chamber. It provides an overview of the vapor compression refrigeration cycle and notes modifications to improve efficiency, such as replacing the expansion engine with a throttling valve.
Chapter 48
The document provides information about heating and air conditioning systems, including:
1. It describes the basic refrigeration cycle that occurs in air conditioning systems, involving evaporation and condensation of refrigerant in the evaporator and condenser.
2. It explains how a heating system works by circulating hot coolant from the engine through a heater core to heat the interior of the vehicle.
3. It discusses the environmental impact of refrigerants like CFC-12 and its replacement, HFC-134a, on the ozone layer.
281
On January 5th, the author was assigned to repair a refrigerator. They studied the components and workings of refrigerators online before working on it. The refrigerator uses a vapor-compression cooling system where a refrigerant is circulated through four main components - a compressor, condenser, evaporator, and throttling device - to lower the temperature inside the refrigerator. The refrigerant is compressed in the compressor, releasing heat in the condenser before expanding through the throttling device into the evaporator, where it absorbs heat from inside the refrigerator before returning to the compressor to repeat the cycle.
Reheating Refrigeration System
Reheating Refrigeration System to control and utilize the rejected heat from an air conditioner to reduce the input power of the compressor without affecting the cooling effect.
Refrigeration Basics
Refrigeration involves cooling an object below the surrounding temperature through the vapor compression cycle. This cycle uses a refrigerant that absorbs unwanted heat, raising its temperature and changing from a liquid to gas. It is then condensed back to a liquid, releasing the heat. The basic components are an evaporator, compressor, condenser, and expansion valve. Refrigeration removes heat through the evaporation and condensation of the refrigerant circulating in a closed loop pipe system. System efficiency is measured by the coefficient of performance, which is the refrigeration effect divided by the work input.
clinical examination of hip joint (1).pdf
described clinical examination all orthopeadic conditions .
More Related Content
What's hot
thermodynamic property of Refrigerator
The document discusses the thermodynamic properties of refrigerators. It describes the key components of a refrigerator - the compressor, condenser, expansion valve, and evaporator. It explains how each component works and how refrigeration is achieved through the phase change of refrigerants. Specifically, the refrigerant is compressed and condensed in the compressor and condenser, expanded through a throttling device, and evaporated in the evaporator, absorbing heat from the refrigerator. The coefficient of performance is introduced as a measure of a refrigerator's effectiveness. Applications of refrigeration like ice manufacturing and food preservation are also listed.
6 simple vapor_compression_rs
1) A simple vapor compression refrigeration system consists of a compressor, condenser, expansion valve, and evaporator connected in a closed loop.
2) Refrigerant is compressed from a low pressure vapor to a high pressure vapor in the compressor, condensed in the condenser, expanded through the expansion valve, and evaporated in the evaporator, absorbing heat from its surroundings.
3) The coefficient of performance (COP) of the system, which indicates its efficiency, depends on factors like subcooling of the refrigerant liquid, superheating of the refrigerant vapor, evaporating and condensing pressures, and the volumetric efficiency of the compressor.
Air conditioning introduction
Air conditioning systems work by removing heat from indoor spaces and transferring it outdoors. They maintain indoor temperatures regardless of outdoor conditions. Refrigerators and air conditioners operate on the same principle - using a compressor, condenser coil, expansion valve and evaporator coil to move heat from inside to outside through the evaporation and condensation of refrigerant. As heat is removed, indoor spaces are cooled down in accordance with the second law of thermodynamics.
PRESENTATATION ON FRIDGE/REFRIDGERATOR
In this power-point presentation, you'll understand the basic concepts & mechanisms of a fridge/refrigerator.
This is a short ppt in simple english language for easy & quick understanding of concepts.
Hope, it'll be helpful to you
THANKYOU :)
Refrigeration cycle
The document summarizes the refrigeration cycle. It describes the four basic processes: (1) isentropic compression in the compressor, (2) constant pressure heat rejection in the condenser, (3) isentropic expansion in the expansion valve/metering device, and (4) constant pressure heat addition in the evaporator. The refrigerant is compressed in the vapor phase, condensed, expanded, and evaporated alternately to provide cooling. Key components are the compressor, condenser, expansion valve, and evaporator. The coefficient of performance (COP) measures efficiency as the cooling effect divided by the work input. Selecting the right refrigerant depends on the application and factors like cost, toxicity, and environmental impact
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
This document summarizes a seminar presentation on vapour compression refrigeration. It describes the basic process of refrigeration, the key components of a refrigeration system including the evaporator, compressor, condenser and expansion valve. It then explains the vapour compression refrigeration cycle in four steps: 1) low pressure liquid refrigerant absorbs heat in the evaporator and changes to a gas, 2) the gas is compressed to high pressure in the compressor, 3) the high pressure gas is cooled and condensed in the condenser, 4) the liquid passes through an expansion device where its pressure is reduced before entering the evaporator again. The document concludes by listing some advantages and disadvantages of vapour compression refrigeration.
Refrigeration system
This document discusses the refrigeration system used by Sardar Vallabhbhai Patel Institute of Technology students Dhrupal Patel, Divya Patel, Kunj Patel, and Meet Patel. It describes the basic components and processes of a vapor compression refrigeration system, including the evaporator, compressor, condenser, expansion valve, and their functions. The refrigerant absorbs heat during evaporation and rejects heat during condensation, allowing for cooling effects. Vapor compression refrigeration systems have advantages like smaller size, higher efficiency, and lower power requirements compared to other refrigeration methods.
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
This document summarizes the key aspects of vapour compression refrigeration. It discusses how refrigeration works by extracting heat from a substance using an external work input. Vapour compression refrigeration uses a refrigerant in a closed loop system consisting of an evaporator, compressor, condenser and expansion valve. The refrigerant absorbs heat in the evaporator and rejects heat in the condenser, with the compressor raising the refrigerant's pressure and temperature between these components. This creates a temperature difference that drives heat transfer from the evaporator to the condenser. The document outlines the refrigeration cycle and components in more detail. It also discusses coefficient of performance, units of refrigeration, advantages and disadvantages of vapour compression systems.
Seminar presentation on Vapour Compression Refrigeration
This document provides an overview of a seminar on vapour compression refrigeration. The seminar was guided by Mr. Devendra Bhandari and prepared by Ujjwal Nautiyal. It discusses the basic principles of refrigeration including how refrigerants are used to extract heat from refrigerators and reject it to the atmosphere. It then describes the key components of a refrigeration system including the evaporator, compressor, condenser, and expansion valve. The document outlines the refrigeration cycle process and concludes by discussing advantages like high efficiency and disadvantages like use of ozone depleting refrigerants.
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
This document summarizes a seminar presentation on vapor compression refrigeration. It describes the basic principles of refrigeration, including defining refrigeration as the removal of heat from a substance at a lower temperature than its surroundings. It then explains the key components and process of a vapor compression refrigeration system, including the evaporator, compressor, condenser, and expansion valve. The document also discusses units of refrigeration, coefficient of performance, advantages and disadvantages of vapor compression refrigeration.
2.1 control systems
The document describes how air conditioning systems and central heating systems work. It explains that air conditioning systems use refrigerant that easily changes between gas and liquid states to absorb heat inside a building. The condenser and expansion valve work to cool the refrigerant into a liquid that cools the inside air. Central heating systems use a boiler to heat water, which circulates through a hot water cylinder and radiators to heat a building. Microprocessor controls are also explained.
Performance enhancement-of-vcrs-using-lshx
The document discusses enhancing the performance of vapor compression refrigeration systems (VCRS) using a liquid suction heat exchanger (LSHX). Adding an LSHX between the condenser and evaporator allows for subcooling of the liquid refrigerant and superheating of the vapor. This increases the refrigeration effect and coefficient of performance (COP) of the system. Theoretically, the COP of a VCRS with an LSHX is higher than a simple cycle without subcooling or superheating. Previous studies have also found improvements to COP of up to 18% with the addition of an LSHX. The document analyzes the vapor compression cycle both on T-S and P-h diagrams to
Refrigeration & Air conditioning
The document provides an overview of refrigeration and air conditioning concepts. It discusses (1) how refrigeration works by moving heat from low to high temperatures, and its applications in air conditioning and keeping spaces cold. It also (2) defines key terms like the unit of refrigeration (ton), coefficient of performance, humidity, wet bulb temperature and dew point. Finally, it (3) explains the basic working of domestic refrigerators and window air conditioners through diagrams.
Refrigeration cycle
The document summarizes the refrigeration cycle and vapor compression refrigeration system. The refrigeration cycle involves compressing a refrigerant gas, condensing it in a condenser to release heat, expanding the liquid refrigerant which causes it to evaporate and absorb heat, and circulating the cold gas back into the refrigerator. The vapor compression system uses this cycle, with the main components being a compressor, condenser, expansion valve, and evaporator. The compressor increases the refrigerant's pressure and temperature, the condenser cools and condenses it, releasing heat, the expansion valve reduces the pressure and temperature causing evaporation, and the evaporator absorbs heat during evaporation to cool its surroundings.
Basic refrigeration cycle
The basic refrigeration cycle involves four main processes: 1) compression, where a refrigerant is compressed into a high-pressure gas, 2) condensation, where the high-pressure gas condenses into a liquid and releases heat, 3) expansion, where the high-pressure liquid passes through an expansion valve and decreases in pressure, and 4) evaporation, where the low-pressure liquid absorbs heat and evaporates back into a gas to be compressed and repeat the cycle. This cycle exploits how gases give off heat when condensed and liquids absorb heat when evaporated to provide cooling.
Refrigeration 1
This document summarizes key concepts in refrigeration cycles. It defines refrigeration as reducing the temperature below the surroundings and notes that refrigerants, like NH3, are used as working fluids. It explains that the refrigerating effect is the energy removed from the cold chamber and that the coefficient of performance is the ratio of heat removed to work input. The document also discusses refrigerator capacity as the amount of heat transferred per unit time from the cold chamber. It provides an overview of the vapor compression refrigeration cycle and notes modifications to improve efficiency, such as replacing the expansion engine with a throttling valve.
Chapter 48
The document provides information about heating and air conditioning systems, including:
1. It describes the basic refrigeration cycle that occurs in air conditioning systems, involving evaporation and condensation of refrigerant in the evaporator and condenser.
2. It explains how a heating system works by circulating hot coolant from the engine through a heater core to heat the interior of the vehicle.
3. It discusses the environmental impact of refrigerants like CFC-12 and its replacement, HFC-134a, on the ozone layer.
281
On January 5th, the author was assigned to repair a refrigerator. They studied the components and workings of refrigerators online before working on it. The refrigerator uses a vapor-compression cooling system where a refrigerant is circulated through four main components - a compressor, condenser, evaporator, and throttling device - to lower the temperature inside the refrigerator. The refrigerant is compressed in the compressor, releasing heat in the condenser before expanding through the throttling device into the evaporator, where it absorbs heat from inside the refrigerator before returning to the compressor to repeat the cycle.
Reheating Refrigeration System
Reheating Refrigeration System to control and utilize the rejected heat from an air conditioner to reduce the input power of the compressor without affecting the cooling effect.
Refrigeration Basics
Refrigeration involves cooling an object below the surrounding temperature through the vapor compression cycle. This cycle uses a refrigerant that absorbs unwanted heat, raising its temperature and changing from a liquid to gas. It is then condensed back to a liquid, releasing the heat. The basic components are an evaporator, compressor, condenser, and expansion valve. Refrigeration removes heat through the evaporation and condensation of the refrigerant circulating in a closed loop pipe system. System efficiency is measured by the coefficient of performance, which is the refrigeration effect divided by the work input.
What's hot (20)
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
Seminar presentation on Vapour Compression Refrigeration
Seminar presentation on Vapour Compression Refrigeration
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
Vapourcompressionrefrigeration 140614054320-phpapp02 (1)
Recently uploaded
clinical examination of hip joint (1).pdf
described clinical examination all orthopeadic conditions .
Main Java[All of the Base Concepts}.docx
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
Hindi varnamala | hindi alphabet PPT.pdf
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
The Diamonds of 2023-2024 in the IGRA collection
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Introduction to AI for Nonprofits with Tapp Network
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Advanced Java[Extra Concepts, Not Difficult].docx
This is part 2 of my Java Learning Journey. This contains Hashing, ArrayList, LinkedList, Date and Time Classes, Calendar Class and more.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
A Strategic Approach: GenAI in Education
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Assessment and Planning in Educational technology.pptx
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
How to Build a Module in Odoo 17 Using the Scaffold Method
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
How to Fix the Import Error in the Odoo 17
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
Recently uploaded (20)
Digital Artefact 1 - Tiny Home Environmental Design
Digital Artefact 1 - Tiny Home Environmental Design
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Introduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp Network
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
The simplified electron and muon model, Oscillating Spacetime: The Foundation...
Assessment and Planning in Educational technology.pptx
Assessment and Planning in Educational technology.pptx
How to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold Method
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
Supar heat
- 2. • It is the amount of heat add to a refrigerant after it has already turned to a vapor from a liquid. • Vapor refrigerant is super heated at constant pressure before entering to compressor. Super Heating
- 3. Degree of SH= Temp. of refrigerant out from evaporator(1’)- Saturation Temperature of refrigerant(1) Condenser outlet temperature must be measure from thermistor or thermocouple Effect Of Sub Cool 1.Refrigeration effect increased. 2.COP Increased.